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*********************************************************** * * * IPB HELP FILE 4 MAY 1978 * * * *********************************************************** THIS FILE CONTAINS THE INSTRUCTIONS FOR THE USE OF THE INTERPROCESSOR BUFFER. THE BUFFER WAS ADDED TO THE SYSTEM AS A PROJECT FOR EECS415. THE INSTRUCTOR FOR THE COURSE WAS DALE SPARKS AND YOU SHOULD BE INDEBTED TO HIM FOR THE HARDWARE AND THE INFORMATION REGARDING THE SOFTWARE THAT MADE THIS PROJECT POSSIBLE THE DEVICE HANDLER WAS MODIFIED FROM A TELETYPE HANDLER AND THEREFORE HAS SOME OF THE SAME CHARACTERISTICS. THE IPB DOES NOT, HOWEVER, PACK THE DATA. IT TRANSFERS FULL 12 BIT WORDS. THIS IS AN IMPORTANT POINT THAT SHOULD NOT BE FORGOTTON. THE IPB IS SEEN BY THE OS/8 OPERATING SYSTEM AS JUST ANOTHER DEVICE. IT CAN BE READ FROM OR WRITTEN TO IN THE SAME WAY ANYOTHER DEVICE CAN. THE ONLY EXCEPTION TO THIS SEEMS TO BE THAT THE IPB IS NOT USABLE BY ABSLDR. THAT IS, "IPB:" CANNOT BE SPECIFIED AS INPUT TO ABSLDR AT THE PRESENT TIME (THE RESONS BEHIND THIS ARE BEING INVESTIGATED AND IT IS HOPED THAT THIS WILL BE CORRECTED IN THE NEAR FUTURE). ***USE OF THE IPB*** THE INTERPROCESSOR BUFFER CONNECTS TWO PDP8/E'S TOGETHER. AS WAS MENTIONED BEFORE IT TRANSFERRES 12 BIT WORDS. IT IS THEREFORE RECCOMENDED THAT UNLESS THE TTY: IS BEING USED TO RECEIVE THE DATA FROM THE IPB THAT IMAGE MODE BE USED FOR ALL TRANSFERS. THIS ASSURES THAT THE DATA WILL ALL BE TRANSFERRED. --EXAMPLES:-- 1) TO TRANSFER THE FILE IPB.HL FROM THIS MACHINE TO THE OTHER ONE WITH THE IPB TYPE: .R PIP OS/8 PRINTS THE . *IPB:<IPB.HL/I PIP PRINTS THE * THIS WILL ALLOW THE DATA TO BE SENT. ON THE RECEIVING MACHINE TYPE: .R PIP OS/8 PRINTS THE . *IPB.HL<IPB:/I PIP PRINTS THE * THIS WILL MAKE THE IPB.HL FILE ON THE SECOND MACNINE. (ON DTA0:) 2) TO USE THE SECOND MACHINE AS A LINE PRINTER DO NOT USE THE /I AND TYPE TTY:<IPB: IN RESPONSE TO THE * FROM PIP ON THE SECOND MACHINE. --ADDING IPB: TO AN UNDERPRIVILIGED OS/8 SYSTEM-- IT IS ASSUMED THAT SINCE YOU HAVE THIS FILE YOU ALSO HAVE ACCESS TO THE FILE IPB002.BN. IF NOT, CONTACT DALE SPARKS OR JOHN BRAYER IN THE EECS DEPARTMENT OF THE UNIVERSITY OF NEW MEXICO. TO ATTACH THE IPB DRIVER TO THE OS/8 OPERATING SYSTEM FOLLOW THE INSTRUCTIONS IN THE OS/8 HANDBOOK UNDER BUILD FOR ADDING DEVICE DRIVERS TO THE SYSTEM. THIS IS A VERY ACCURATE DESCRIPTION AND FOR THAT REASON IS NOT REPEATED HERE. YOU WILL NEED THE FOLLOWING INFORMATION: 1) THE BINARY FILE IS IPB002.BN 2) YOU WILL PROBABLY HAVE TO UNLOAD LNC IN ORDER FOR THERE TO BE ENOUGH ROOM. (IF YOU GET A "NO ROOM" MESSAGE. 3) THE GNAME AND PNAME ARE BUFF AND IPB RESPECTIVELY 4) BE SURE TO ISSUE THE BO COMMAND WHEN THE DRIVER HAS BEEN INSERTED 5) **********NOTICE**********NOTICE**********NOTICE******* THE BUILD PROGRAM ON THE TC08 SYSTEM IS TCRBLD. USING BUILD WILL SCREW UP THE SYSTEM!!!!!!!!!!! **********NOTICE**********NOTICE**********NOTICE******* CHANGES WILL BE ADDED TO THE FRONT OF THIS FILE (AFTER THE HEADER) AND WILL BE DATED SO THAT YOU DO NOT HAVE TO WADE THROUGH ALL OF THE STUFF YOU ALREADY KNOW JUST TO SEE IF THERE HAVE BEEN ANY CHANGES MADE RECENTLY. IF YOU HAVE ANY QUESTIONS OR COMMENTS REGARDING THE IPB DRIVER PLEASE DIRECT THEM TO JOHN MCDERMOTT, JR. OR DALE SPARKS.